The Seneca's rebuttal starts the next day on WGY 810-AM/103.1-FM, plus stations in three other upstate markets.

The Senecas have bought 35 ads per week on WGY for each of the next four weeks, a spokesman said. It's an average of five ads per day, 60 seconds each.

The Senecas own and operate casinos in western New York complete with "table games," such as poker, black jack and roulette with human dealers.

Cuomo's casino plan, which has early support from legislative leaders, calls for such games to be allowed at harness-racing tracks or other locations—such as Saratoga Gaming and Raceway, in Saratoga Springs.

Senecas argue that Cuomo's push, which involves amending the state constitution, would undercut their economy. The Senecas employ 6,000 people and spends $167 million a year at local suppliers.

The Senecas also argue that expanded casino gambling would violate rights secured in the nation's gaming compact with the state. Disputes over that compact have led the nation to withhold $350 million of contractual payments to the state over the past three years.

The Senecas do not oppose expanded gambling in other parts of the state, including Saratoga Springs, a spokesman said. He said the nation is seeking to ensure the expansion does not occur in the 14 western New York counties covered by the compact.

The New York Gaming Association, which includes the Saratoga operation, has said it's prepared to assemble a budget of $10 million or more to push their side.

The only unknown figure at this point: What the Senecas are spending on the radio ads. A spokesman declined to reveal the price of the ad buy.